One reason is being low in a type of compound produced within the stomach called intrinsic factor (a type of glycoprotein), which combines with vitamin B12 once consumed in order to allow it to be absorbed
So, there is no risk of overdose
Your medical history, preferences, and more can all have an impact on how you are treated
An advised treatment plan for maximum results is 1 injection per week for 4 weeks then 1 injection per month
However, for most people with normal B12 levels, supplementation or injections do not significantly affect metabolism or fat loss
Inhibition of CD38 by 78c Enhanced NAD(+), Alleviated Inflammation, and Decreased Oxidative Stress in Old Murine Macrophages Induced by Oral Pathogens